You can edit your Google documents when you don’t have an Internet connection, starting right away. You’ll need the latest versions of Chrome or ChromeOS to be able to edit though. Offline editing is not yet available yet for Google spreadsheets or presentations, but will be available in the future, says Google.
When you edit your Google document offline, menu items which require an Internet connection are disabled. Menus items which have to do with editing and formatting text or changing the layout of your document, remain active.
Now comes the question about to be worth a few billion dollars. How far is Google from delivering a fully functional office suite, something like MS Office, perhaps? It already has the programs needed for office productivity -docs, spreadsheets, presentations. With offline availability, Google just inched a step nearer to the office grail.